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<div class="headertitle"><div class="title">fftools_thread_queue.h File Reference</div></div>
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Typedefs</h2></td></tr>
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<tr class="memitem:acce42a109ac181505c1bd02a7bc3400d"><td class="memItemLeft" align="right" valign="top">typedef struct <a class="el" href="../../d9/db4/struct_thread_queue.html">ThreadQueue</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="../../da/d87/fftools__thread__queue_8h.html#acce42a109ac181505c1bd02a7bc3400d">ThreadQueue</a></td></tr>
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<tr class="separator:acce42a109ac181505c1bd02a7bc3400d"><td class="memSeparator" colspan="2"> </td></tr>
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</table><table class="memberdecls">
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<tr class="heading"><td colspan="2"><h2 class="groupheader"><a id="func-members" name="func-members"></a>
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Functions</h2></td></tr>
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<tr class="memitem:a7c344c91be2c77f54a4b23a7fbe03497"><td class="memItemLeft" align="right" valign="top"><a class="el" href="../../d9/db4/struct_thread_queue.html">ThreadQueue</a> * </td><td class="memItemRight" valign="bottom"><a class="el" href="../../da/d87/fftools__thread__queue_8h.html#a7c344c91be2c77f54a4b23a7fbe03497">tq_alloc</a> (unsigned <a class="el" href="../../d2/d36/fftools__ffmpeg__filter_8c.html#a61569f2965b7a369eb10b6d75d410d11">int</a> <a class="el" href="../../d8/d78/fftools__ffprobe_8c.html#abad15c2aaf9c54ccddd8d8abf6bed069">nb_streams</a>, size_t queue_size, <a class="el" href="../../d4/d62/struct_obj_pool.html">ObjPool</a> *obj_pool, void(*obj_move)(void *dst, void *src))</td></tr>
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<tr class="separator:a7c344c91be2c77f54a4b23a7fbe03497"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:af889d9deaee0903feeb0b3168df06e92"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="../../da/d87/fftools__thread__queue_8h.html#af889d9deaee0903feeb0b3168df06e92">tq_free</a> (<a class="el" href="../../d9/db4/struct_thread_queue.html">ThreadQueue</a> **tq)</td></tr>
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<tr class="separator:af889d9deaee0903feeb0b3168df06e92"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:a3bec668d052dc9e28960f5a48d178aa0"><td class="memItemLeft" align="right" valign="top"><a class="el" href="../../d2/d36/fftools__ffmpeg__filter_8c.html#a61569f2965b7a369eb10b6d75d410d11">int</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="../../da/d87/fftools__thread__queue_8h.html#a3bec668d052dc9e28960f5a48d178aa0">tq_send</a> (<a class="el" href="../../d9/db4/struct_thread_queue.html">ThreadQueue</a> *tq, unsigned <a class="el" href="../../d2/d36/fftools__ffmpeg__filter_8c.html#a61569f2965b7a369eb10b6d75d410d11">int</a> stream_idx, void *data)</td></tr>
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<tr class="separator:a3bec668d052dc9e28960f5a48d178aa0"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:a22d0fb73f10c4603e84096e73353a866"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="../../da/d87/fftools__thread__queue_8h.html#a22d0fb73f10c4603e84096e73353a866">tq_send_finish</a> (<a class="el" href="../../d9/db4/struct_thread_queue.html">ThreadQueue</a> *tq, unsigned <a class="el" href="../../d2/d36/fftools__ffmpeg__filter_8c.html#a61569f2965b7a369eb10b6d75d410d11">int</a> stream_idx)</td></tr>
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<tr class="separator:a22d0fb73f10c4603e84096e73353a866"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:acd4f6ad1dabc31688aa7822c206460d6"><td class="memItemLeft" align="right" valign="top"><a class="el" href="../../d2/d36/fftools__ffmpeg__filter_8c.html#a61569f2965b7a369eb10b6d75d410d11">int</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="../../da/d87/fftools__thread__queue_8h.html#acd4f6ad1dabc31688aa7822c206460d6">tq_receive</a> (<a class="el" href="../../d9/db4/struct_thread_queue.html">ThreadQueue</a> *tq, <a class="el" href="../../d2/d36/fftools__ffmpeg__filter_8c.html#a61569f2965b7a369eb10b6d75d410d11">int</a> *stream_idx, void *data)</td></tr>
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<tr class="separator:acd4f6ad1dabc31688aa7822c206460d6"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:afe3a128598718b5837d6127f3e88cdbd"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="../../da/d87/fftools__thread__queue_8h.html#afe3a128598718b5837d6127f3e88cdbd">tq_receive_finish</a> (<a class="el" href="../../d9/db4/struct_thread_queue.html">ThreadQueue</a> *tq, unsigned <a class="el" href="../../d2/d36/fftools__ffmpeg__filter_8c.html#a61569f2965b7a369eb10b6d75d410d11">int</a> stream_idx)</td></tr>
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<tr class="separator:afe3a128598718b5837d6127f3e88cdbd"><td class="memSeparator" colspan="2"> </td></tr>
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</table>
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<h2 class="groupheader">Typedef Documentation</h2>
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<a id="acce42a109ac181505c1bd02a7bc3400d" name="acce42a109ac181505c1bd02a7bc3400d"></a>
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<h2 class="memtitle"><span class="permalink"><a href="#acce42a109ac181505c1bd02a7bc3400d">◆ </a></span>ThreadQueue</h2>
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<div class="memitem">
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<div class="memproto">
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<td class="memname">typedef struct <a class="el" href="../../d9/db4/struct_thread_queue.html">ThreadQueue</a> <a class="el" href="../../d9/db4/struct_thread_queue.html">ThreadQueue</a></td>
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</tr>
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</table>
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</div><div class="memdoc">
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<p class="definition">Definition at line <a class="el" href="../../da/d87/fftools__thread__queue_8h_source.html#l00039">39</a> of file <a class="el" href="../../da/d87/fftools__thread__queue_8h_source.html">fftools_thread_queue.h</a>.</p>
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</div>
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<h2 class="groupheader">Function Documentation</h2>
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<a id="a7c344c91be2c77f54a4b23a7fbe03497" name="a7c344c91be2c77f54a4b23a7fbe03497"></a>
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<h2 class="memtitle"><span class="permalink"><a href="#a7c344c91be2c77f54a4b23a7fbe03497">◆ </a></span>tq_alloc()</h2>
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<div class="memitem">
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<div class="memproto">
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<td class="memname"><a class="el" href="../../d9/db4/struct_thread_queue.html">ThreadQueue</a> * tq_alloc </td>
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<td>(</td>
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<td class="paramtype">unsigned <a class="el" href="../../d2/d36/fftools__ffmpeg__filter_8c.html#a61569f2965b7a369eb10b6d75d410d11">int</a> </td>
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<td class="paramname"><em>nb_streams</em>, </td>
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<td class="paramkey"></td>
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<td></td>
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<td class="paramtype">size_t </td>
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<td class="paramname"><em>queue_size</em>, </td>
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<td class="paramkey"></td>
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<td></td>
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<td class="paramtype"><a class="el" href="../../d4/d62/struct_obj_pool.html">ObjPool</a> * </td>
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<td class="paramname"><em>obj_pool</em>, </td>
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<td class="paramkey"></td>
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<td></td>
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<td class="paramtype">void(*)(void *dst, void *src) </td>
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<td class="paramname"><em>obj_move</em> </td>
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<tr>
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<td></td>
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<td>)</td>
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<td></td><td></td>
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</table>
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</div><div class="memdoc">
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<p>Allocate a queue for sending data between threads.</p>
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<dl class="params"><dt>Parameters</dt><dd>
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<table class="params">
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<tr><td class="paramname">nb_streams</td><td>number of streams for which a distinct EOF state is maintained </td></tr>
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<tr><td class="paramname">queue_size</td><td>number of items that can be stored in the queue without blocking </td></tr>
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<tr><td class="paramname">obj_pool</td><td>object pool that will be used to allocate items stored in the queue; the pool becomes owned by the queue </td></tr>
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<tr><td class="paramname">callback</td><td>that moves the contents between two data pointers </td></tr>
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</table>
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</dd>
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</dl>
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<p class="definition">Definition at line <a class="el" href="../../dc/d56/fftools__thread__queue_8c_source.html#l00093">93</a> of file <a class="el" href="../../dc/d56/fftools__thread__queue_8c_source.html">fftools_thread_queue.c</a>.</p>
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</div>
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<a id="af889d9deaee0903feeb0b3168df06e92" name="af889d9deaee0903feeb0b3168df06e92"></a>
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<h2 class="memtitle"><span class="permalink"><a href="#af889d9deaee0903feeb0b3168df06e92">◆ </a></span>tq_free()</h2>
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<td class="memname">void tq_free </td>
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<td>(</td>
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<td class="paramtype"><a class="el" href="../../d9/db4/struct_thread_queue.html">ThreadQueue</a> ** </td>
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<td class="paramname"><em>tq</em></td><td>)</td>
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<td></td>
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<p class="definition">Definition at line <a class="el" href="../../dc/d56/fftools__thread__queue_8c_source.html#l00069">69</a> of file <a class="el" href="../../dc/d56/fftools__thread__queue_8c_source.html">fftools_thread_queue.c</a>.</p>
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<a id="acd4f6ad1dabc31688aa7822c206460d6" name="acd4f6ad1dabc31688aa7822c206460d6"></a>
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<h2 class="memtitle"><span class="permalink"><a href="#acd4f6ad1dabc31688aa7822c206460d6">◆ </a></span>tq_receive()</h2>
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<td class="memname"><a class="el" href="../../d2/d36/fftools__ffmpeg__filter_8c.html#a61569f2965b7a369eb10b6d75d410d11">int</a> tq_receive </td>
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<td>(</td>
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<td class="paramtype"><a class="el" href="../../d9/db4/struct_thread_queue.html">ThreadQueue</a> * </td>
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<td class="paramname"><em>tq</em>, </td>
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<td class="paramtype"><a class="el" href="../../d2/d36/fftools__ffmpeg__filter_8c.html#a61569f2965b7a369eb10b6d75d410d11">int</a> * </td>
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<td class="paramname"><em>stream_idx</em>, </td>
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<td class="paramtype">void * </td>
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<td class="paramname"><em>data</em> </td>
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<td></td>
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<td>)</td>
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<p>Read the next item from the queue.</p>
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<dl class="params"><dt>Parameters</dt><dd>
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<table class="params">
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<tr><td class="paramname">stream_idx</td><td>the index of the stream that was processed or -1 will be written here </td></tr>
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<tr><td class="paramname">data</td><td>the data item will be written here on success using the callback provided to <a class="el" href="../../da/d87/fftools__thread__queue_8h.html#a7c344c91be2c77f54a4b23a7fbe03497">tq_alloc()</a> </td></tr>
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<dl class="section return"><dt>Returns</dt><dd><ul>
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<li>0 a data item was successfully read; *stream_idx contains a non-negative stream index</li>
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<li>AVERROR_EOF When *stream_idx is non-negative, this signals that the sending side has marked the given stream as finished. This will happen at most once for each stream. When *stream_idx is -1, all streams are done. </li>
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<p class="definition">Definition at line <a class="el" href="../../dc/d56/fftools__thread__queue_8c_source.html#l00205">205</a> of file <a class="el" href="../../dc/d56/fftools__thread__queue_8c_source.html">fftools_thread_queue.c</a>.</p>
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<a id="afe3a128598718b5837d6127f3e88cdbd" name="afe3a128598718b5837d6127f3e88cdbd"></a>
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<h2 class="memtitle"><span class="permalink"><a href="#afe3a128598718b5837d6127f3e88cdbd">◆ </a></span>tq_receive_finish()</h2>
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<div class="memitem">
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<td class="memname">void tq_receive_finish </td>
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<td>(</td>
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<td class="paramtype"><a class="el" href="../../d9/db4/struct_thread_queue.html">ThreadQueue</a> * </td>
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<td class="paramname"><em>tq</em>, </td>
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<td class="paramtype">unsigned <a class="el" href="../../d2/d36/fftools__ffmpeg__filter_8c.html#a61569f2965b7a369eb10b6d75d410d11">int</a> </td>
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<td class="paramname"><em>stream_idx</em> </td>
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<td>)</td>
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<td></td><td></td>
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</div><div class="memdoc">
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<p>Mark the given stream finished from the receiving side. </p>
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<p class="definition">Definition at line <a class="el" href="../../dc/d56/fftools__thread__queue_8c_source.html#l00246">246</a> of file <a class="el" href="../../dc/d56/fftools__thread__queue_8c_source.html">fftools_thread_queue.c</a>.</p>
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<h2 class="memtitle"><span class="permalink"><a href="#a3bec668d052dc9e28960f5a48d178aa0">◆ </a></span>tq_send()</h2>
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<td class="memname"><a class="el" href="../../d2/d36/fftools__ffmpeg__filter_8c.html#a61569f2965b7a369eb10b6d75d410d11">int</a> tq_send </td>
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<td>(</td>
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<td class="paramtype"><a class="el" href="../../d9/db4/struct_thread_queue.html">ThreadQueue</a> * </td>
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<td class="paramname"><em>tq</em>, </td>
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<td class="paramkey"></td>
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<td class="paramtype">unsigned <a class="el" href="../../d2/d36/fftools__ffmpeg__filter_8c.html#a61569f2965b7a369eb10b6d75d410d11">int</a> </td>
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<td class="paramname"><em>stream_idx</em>, </td>
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<td class="paramtype">void * </td>
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<tr>
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<td></td>
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<td>)</td>
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<td></td><td></td>
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</table>
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</div><div class="memdoc">
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<p>Send an item for the given stream to the queue.</p>
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<dl class="params"><dt>Parameters</dt><dd>
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<table class="params">
|
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<tr><td class="paramname">data</td><td>the item to send, its contents will be moved using the callback provided to <a class="el" href="../../da/d87/fftools__thread__queue_8h.html#a7c344c91be2c77f54a4b23a7fbe03497">tq_alloc()</a>; on failure the item will be left untouched </td></tr>
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<dl class="section return"><dt>Returns</dt><dd><ul>
|
||
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<li>0 the item was successfully sent</li>
|
||
|
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<li>AVERROR(ENOMEM) could not allocate an item for writing to the FIFO</li>
|
||
|
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<li>AVERROR(EINVAL) the sending side has previously been marked as finished</li>
|
||
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<li>AVERROR_EOF the receiving side has marked the given stream as finished </li>
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<p class="definition">Definition at line <a class="el" href="../../dc/d56/fftools__thread__queue_8c_source.html#l00134">134</a> of file <a class="el" href="../../dc/d56/fftools__thread__queue_8c_source.html">fftools_thread_queue.c</a>.</p>
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<a id="a22d0fb73f10c4603e84096e73353a866" name="a22d0fb73f10c4603e84096e73353a866"></a>
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<h2 class="memtitle"><span class="permalink"><a href="#a22d0fb73f10c4603e84096e73353a866">◆ </a></span>tq_send_finish()</h2>
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<div class="memitem">
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<tr>
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<td class="memname">void tq_send_finish </td>
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<td>(</td>
|
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<td class="paramtype"><a class="el" href="../../d9/db4/struct_thread_queue.html">ThreadQueue</a> * </td>
|
||
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<td class="paramname"><em>tq</em>, </td>
|
||
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</tr>
|
||
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<tr>
|
||
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<td class="paramkey"></td>
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<td></td>
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<td class="paramtype">unsigned <a class="el" href="../../d2/d36/fftools__ffmpeg__filter_8c.html#a61569f2965b7a369eb10b6d75d410d11">int</a> </td>
|
||
|
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<td class="paramname"><em>stream_idx</em> </td>
|
||
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</tr>
|
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<tr>
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<td></td>
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<td>)</td>
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<td></td><td></td>
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</table>
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</div><div class="memdoc">
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<p>Mark the given stream finished from the sending side. </p>
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<p class="definition">Definition at line <a class="el" href="../../dc/d56/fftools__thread__queue_8c_source.html#l00231">231</a> of file <a class="el" href="../../dc/d56/fftools__thread__queue_8c_source.html">fftools_thread_queue.c</a>.</p>
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